Finding the Fourth Proportional to 1,591.55, 2,196.47 and 1,002.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.55 : 2,196.47 = 1,002.68 : x
2. Step 2: Convert to fraction form
   1,591.55/2,196.47 = 1,002.68/x
3. Step 3: Cross multiply
   1,591.55x = 2,196.47 × 1,002.68
4. Step 4: Simplify right side
   1,591.55x = 2,202,350.66
5. Step 5: Solve for x
   x = 2,202,350.66/1,591.55
6. Step 6: Final answer
   x = 1,383.78